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Section 12 Bus State Controller (BSC)
Rev. 4.00 Sep. 14, 2005 Page 288 of 982
REJ09B0023-0400
Bit Bit
Name
Initial
Value R/W Description
1
0
HW1
HW0
0
0
R/W
R/W
Delay Cycles from RD,
WEn
Negation to Address,
CSn
Negation
Specify the number of delay cycles from RD and
WEn
negation to address and
CSn
negation.
00: 0.5 cycles
01: 1.5 cycles
10: 2.5 cycles
11: 3.5 cycles
Note:
*
To connect the burst ROM to the CS0 area and use the burst ROM interface after the
BSC is activated, enables the burst access through bit 20, specifies the number of burst
wait cycles through bits 17 and 16, and then set the bits TYPE[2:0] in CS0BCR.
Reserved bits other than above should not be set to 1.
For details on the burst ROM interface, see Burst ROM (Clock Asynchronous).
•
CS2WCR, CS3WCR
Bit Bit
Name
Initial
Value R/W Description
31 to 21
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
20
BAS
0
R/W
Byte-Selection SRAM Byte Access Selection
Specifies the
WEn
and RD/
WR
signal timing when the
byte-selection SRAM interface is used.
0: Asserts the
WEn
signal at the read timing and
asserts the RD/
WR
signal during the write access
cycle.
1: Asserts the
WEn
signal during the read access cycle
and asserts the RD/
WR
signal at the write timing.
19 to 11
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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Page 1036: ...SH7641 Hardware Manual...